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Record 65 of 10730
Redshift space clustering of galaxies and cold dark matter model
External Online Source: doi:10.1086/186835
Author and Affiliation:
Bahcall, Neta A.(NASA, Washington, DC, United States)
Cen, Renyue(Princeton Univ., Observatory, NJ, United States)
Gramann, Mirt(Princeton Univ., Observatory, NJ)
Abstract: The distorting effect of peculiar velocities on the power speturm and correlation function of IRAS and optical galaxies is studied. The observed redshift space power spectra and correlation functions of IRAS and optical the galaxies over the entire range of scales are directly compared with the corresponding redshift space distributions using large-scale computer simulations of cold dark matter (CDM) models in order to study the distortion effect of peculiar velocities on the power spectrum and correlation function of the galaxies. It is found that the observed power spectrum of IRAS and optical galaxies is consistent with the spectrum of an Omega = 1 CDM model. The problems that such a model currently faces may be related more to the high value of Omega in the model than to the shape of the spectrum. A low-density CDM model is also investigated and found to be consistent with the data.
Publication Date: May 10, 1993
Document ID:
(Acquired Dec 28, 1995)
Accession Number: 93A35787
Subject Category: ASTROPHYSICS
Document Type: Journal Article
Publication Information: Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X); 408; 2; p. L77-L80.
Publisher Information: United States
Contract/Grant/Task Num: NSF AST-91-08103; NSF AST-90-20506; NAGW-2448
Financial Sponsor: NASA; United States
Organization Source: NASA; Washington, DC, United States
Description: 4p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
Imprint And Other Notes: Astrophysical Journal, Part 2 - Letters vol. 408, no. 2 p. L77-L80. May 10, 1993
Availability Source: Other Sources
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